Stimuli responsive release of metalic nanoparticles on semiconductor substrates

Miguel Santiago-Cordoba, Özge Topal, David L. Allara, A. Kaan Kalkan, Melik C. Demirel

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Optically active metal nanoparticles have been of recent and broad interest for applications to biomarker detection because of their ability to enable high sensitivity enhancements in various optical detection techniques. Here, we report stimuli responsive release of metallic nanoparticles on a semiconductor thin film array structure based on pH change. The metallic nanoparticles are obtained by a simple redox procedure on the semiconductor surface. This approach allows controlling nanoparticle surface coatings in situ for biomolecule conjugation, such as DNA probes on nanoparticles, and rapid stimuli responsive release of these nanoparticles upon pH change.

Original languageEnglish (US)
Pages (from-to)5975-5980
Number of pages6
Issue number14
StatePublished - Apr 10 2012

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry


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